mirror of
https://github.com/qdm12/gluetun.git
synced 2026-05-10 04:30:20 +02:00
Quentin McGaw
4a78989d9d
- main reason being it's a burden to always define sentinel errors at global scope, wrap them with `%w` instead of using a string directly - only use sentinel errors when it has to be checked using `errors.Is` - replace all usage of these sentinel errors in `fmt.Errorf` with direct strings that were in the sentinel error - exclude the sentinel error definition requirement from .golangci.yml - update unit tests to use ContainersError instead of ErrorIs so it stays as a "not a change detector test" without requiring a sentinel error
49 lines
1.2 KiB
Go
49 lines
1.2 KiB
Go
package updater
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import (
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"fmt"
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"regexp"
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"strings"
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)
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var trailingNumber = regexp.MustCompile(` [0-9]+$`)
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func parseFilename(fileName string) (
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countryCode, city string, err error,
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) {
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fileName = strings.ReplaceAll(fileName, " ", "") // remove spaces
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const prefix = "PrivateVPN-"
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if !strings.HasPrefix(fileName, prefix) {
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return "", "", fmt.Errorf("bad prefix in file name %s", fileName)
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}
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s := strings.TrimPrefix(fileName, prefix)
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const tcpSuffix = "-TUN-443.ovpn"
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const udpSuffix = "-TUN-1194.ovpn"
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switch {
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case strings.HasSuffix(fileName, tcpSuffix):
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s = strings.TrimSuffix(s, tcpSuffix)
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case strings.HasSuffix(fileName, udpSuffix):
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s = strings.TrimSuffix(s, udpSuffix)
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default:
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return "", "", fmt.Errorf("bad suffix in file name %s", fileName)
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}
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s = trailingNumber.ReplaceAllString(s, "")
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parts := strings.Split(s, "-")
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const minParts = 2
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if len(parts) < minParts {
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return "", "", fmt.Errorf("not enough parts in file name %s", fileName)
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}
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countryCode, city = parts[0], parts[1]
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countryCode = strings.ToLower(countryCode)
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if countryCode == "co" && strings.HasPrefix(city, "Bogot") {
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city = "Bogota"
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}
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return countryCode, city, nil
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}
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